C Yukon 2WD V8-5.7L VIN R (1999)
Timing Cover: Service and Repair
ENGINE FRONT COVER REPLACEMENT
REMOVAL PROCEDURE
1. Remove the crankshaft balancer. See: Cylinder Block Assembly/Harmonic Balancer - Crankshaft Pulley/Service and Repair
2. Remove the water pump. See: Water Pump/Service and Repair
3. Drain the engine oil.
4. Remove all the engine oil pan fasteners except the two nuts at the rear of the engine.
5. Carefully separate the engine oil pan from the engine front cover.
6. Disconnect the Crankshaft Position (CKP) sensor wire.
7. Remove the engine front cover and gasket.
INSTALLATION PROCEDURE
1. Install a NEW engine front cover.
2. Clean all the adhesive from the corners of the oil pan gasket where it meets the engine front cover.
IMPORTANT: The oil gasket and the oil pan must be installed and the fasteners tightened while the adhesive is still wet to the touch.
3. Apply a 5 mm (0.197 inch) wide and 25 mm (1.0 inch) long bead of adhesive, GM P/N 12346141 or equivalent, to the engine front cover to
engine block junction at the oil pan sealing surfaces.
NOTICE: Refer to Fastener Notice in Service Precautions.
4. Install the engine oil pan nuts and bolts.
4.1.
Tighten the oil pan bolts to 12 Nm (106 inch lbs.).
4.2.
Tighten the oil pan nuts to 25 Nm (18 ft. lbs.).
5. Connect the crankshaft position (CKP) sensor wire.
6. Install the water pump.
7. Install the crankshaft balancer.
